At first I wasn't able to play the game because my name was too long, and it didn't even tell me it was to long. That was annoying. Unity's built in input fields and TMP's both have a character limit built in that would have been better to use.
While I was playing the game it took me a while to figure out the movement, but eventually I got the hang of it. To me it feels there is to much sliding around. The blue squares showing you where they are behind you by snapping to the edges of the screen is helpful, but glitchy and confusing.
The last thing is the cyan circle. It has a great purpose, like showing you where you might land a jump.
Except it doesn't. In fact, it does the opposite, making it hard to see when touching the ground, and disappear when you need it the most.
Aside from this, I enjoyed the game a lot. The attention to detail on the level is stunning, and feels like something out of a published game.